The UK prison system is designed to manage individuals who have been convicted of crimes. It includes various types of facilities, such as category A prisons for high-risk offenders and open prisons for those deemed low-risk. The system focuses on rehabilitation, aiming to reduce reoffending through education and vocational training programs. Prisons in the UK are overseen by Her Majesty's Prison and Probation Service (HMPPS), which ensures that inmates are treated fairly and humanely. The system also includes support for mental health and addiction issues, recognizing that addressing these factors is crucial for successful reintegration into society.